编译/替换jar，so...
1.1、frameworks/base/services/core/java/com/android/server目录下文件修改
编译：frameworks/base/services目录下mm -j
替换：/system/framework/services.jar
1.2、frameworks/base/media/java/android/media/目录下文件修改
编译：frameworks/base/目录下mm -j
替换：/system/framework/framework.jar
1.3、frameworks/base/core/jni/目录下文件修改
编译：frameworks/base/core/jni/目录下mm -j
替换：/system/lib/libandroid_runtime.so
1.4、frameworks/av/services/audiopolicy/managerdefault目录下文件修改
编译：frameworks/av/services/audiopolicy目录下mm -j
替换：/system/lib/libaudiopolicymanagerdefault.so
1.5、frameworks/av/media/libaudioclient目录下文件修改
编译：frameworks/av/media/libaudioclient目录下mm -j
替换：/system/lib/libaudioclient.so